Compact flow sensors for monitoring compressed air use

The SFAH flow sensor from Festo allows
for easy and cost-effective monitoring of compressed air use. Featuring an
intuitive user interface with high output flexibility, the flow sensor gives a
clear picture of your energy usage. Combining high flow dynamics with a compact
design, the SFAH flow sensor has been developed to measure non-corrosive gases
and air.

Festo’s SFAH flow sensors are designed
for use in the general automation market, but particularly suited to
applications involving small parts picking, consumption monitoring, air gap
checking and leakage detection. Operating at pressures between 0.9 bar and 10
bar, the SFAH offers an extended flow measurement range from 0.002 l/min to 200

Key features and benefits of SFAH
flow sensors include accurate and reliable readings; robust design reducing
susceptibility to disruption by particles and moisture; choice of straight,
angular or rotatable pneumatic connectors offering great installation
flexibility; user interfaces common across Festo’s entire flow and pressure
sensor range, simplifying commissioning and installation; high level of
in-built flexibility thanks to switchable electrical outputs including NPN/PNP,
NO/NC and IO-Link that are easily selected from the intuitive menu; digital and
analogue outputs; and direct programming via intuitive ‘teach’ buttons on the
unit, or by using an IO-Link master and selecting parameters via a computer or

Using the sensor with IO-Link,
which stores all the sensor parameters, also allows for remote maintenance. If an
existing sensor in the field needs replacement, the new sensor can be simply
wired in and the IO-Link master can download the necessary parameters for operation.

Additionally, the IO-Link master
can offer a replication function for identical sensors. Just commission one
sensor and copy the information to the rest; this eliminates the need to set up
sensors individually, simplifying and speeding up maintenance, and reducing
build and downtime.

Each SFAH flow sensor is
equipped with a high contrast, illuminated LCD colour changing display that
provides a clear visual indication when the set parameters are exceeded. An
inbuilt eco function ensures the backlight will only be on when the unit is in
use or being interrogated, thereby saving energy, particularly where multiple
sensors are used. The SFAH flow sensor is IP40 rated for use in general
industrial applications and a range of accessories is available to protect the
sensor in harsher environments. 

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